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Finding the Fourth Proportional to 354,031.74, 488,744.37 and 239,913.27

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Solution

The fourth proportional to 354,031.74, 488,744.37 and 239,913.27 is: 331,202.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,031.74 : 488,744.37 = 239,913.27 : x
  2. Step 2: Convert to fraction form
    354,031.74/488,744.37 = 239,913.27/x
  3. Step 3: Cross multiply
    354,031.74x = 488,744.37 × 239,913.27
  4. Step 4: Simplify right side
    354,031.74x = 117,256,260,000.79
  5. Step 5: Solve for x
    x = 117,256,260,000.79/354,031.74
  6. Step 6: Final answer
    x = 331,202.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.